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�LA I Ca <br /> MECHANICAL CONTRACTORS <br /> 1919 Market Street <br /> P.O.Box 12954 <br /> Oakland,California 94604 <br /> (415)834-2333 <br /> Contractors License No. 184480 <br /> April 18, 1990 <br /> Arco <br /> P.O. Box 5811 <br /> San Mateo, California 94402 <br /> Attention: Courtland Holman <br /> Reference: Station #2186, 3212 North California Street, Stockton, CA <br /> Work Order #110375 <br /> Dear Mr. Holman, <br /> On April 12, 1990, we precision tested three (3) underground storage tanks using <br /> the "Petro-Tite" system. <br /> The results for the tank tests were as follows: <br /> PRODUCT CAPACITY RESULTS <br /> Regular 10,000 -.034 gph <br /> Unleaded 10,000 -.025 gph <br /> Supreme 8,000 -.035 gph <br /> All the above leak rates are within the NFPA criteria of +.050 gallons per hour; <br /> therefore, these tanks and attached piping can be considered liquid tight at this <br /> time. <br /> The test results are attached. <br /> If you have any additional questions or if we can be of further assistance to you, <br /> please call us at (415) 834-2333, extension 3455. <br /> Very truly yours, <br /> SCOTT C OF CALIFORNIA <br /> c <br /> Michael Schweickert-Start' U <br /> Environmental Assistant <br /> MSS:jnj <br /> Enclosures as stated <br />